Categoría: Combinations

A total of 8 different books are to be distributed among 4 students so that each student receives at least one book. At most 2 of the students are to receive the same number of books, and no two of Leer más…

Keep in mind: 5!=5x4x3x2x1 n! = nx(n-1)x(n-2)x(n-3)x…3x2x1

GMAT QUANT Problem Solving, Difficulty: 700-Level, Combinations, Source: 800 Score, Source: Grockit A local bank that has 15 branches uses a two-digit code to represent each of its branches. The same integer can be used for both digits of a Leer más…

GMAT QUANT Difficulty: 700-Level, Combinations, Source: Veritas Prep in Problem Solving (PS) A certain football coach allows his quarterback to call three plays in a row. If the quarterback can choose from 3 passing plays, 4 running plays, and 2 Leer más…

GMAT QUANT Difficulty: 700-Level, Combinations in Problem Solving (PS) A password to a certain database consists of digits that cannot be repeated. If the password is known to consist of at least 8 digits and it takes 12 seconds to Leer más…

GMAT QUANT Problem Solving Difficulty: 600-700 Level, Combinations If a code word is defined to be a sequence of different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J, what is the Leer más…

GMAT QUANT Problem Solving level 700, Combinations In how many ways can 10 different paintings be distributed between two collectors – Dave and Mona – if both collectors should get an even number of paintings? (All paintings should be given Leer más…

GMAT QUANT Difficulty: 700-Level, Combinations The Simplastic language has only 2 unique vowels and 3 unique consonants. Every noun in Simplastic has the structure CVCVC, where C stands for a consonant and V stands for a vowel. How many different Leer más…